Aero-engine control



Patented June 29, 1920.

WlTN E 55E-S..

UNITED STATES STA NLIGY PATENT OFFICE.

NEW YORK,

LIM :1037.

Apg/ihm Lam ating lever and a nh G01N-uniud wreix)` and u tomntc meuh? fm im wing thv :hf` hum of the connecting! ha laf .wml hhh from thu fuh-rlme wf im.: sa# ihv in Hhuwu in thv. (han AHH KNSM HU arming@ Y hda if* @AgAgement wth am wlw h w wir lll

und Rm) and thus an Iopening of theithiot-- tle in inverse riitio to the iiir pressure.

A secondary und incidental result nl. tained is that the rrorliureter to which this :ontrol muy be lilteil muy he so :id iusted that as the throttle is opened wider nl; higher altitudes the mixture is iniiintiiiueil suili eiently nearly constant that the engine ile-A velops its full power and ,il` the nuuliine dives from u high altitude to ii lower ulti` tude the uutunuiitiry closure ol' the throttle will maintain the mixture sufficiently rirli itt low altitudes to prevent :i buck-ii re.

This closure also tends to prevent the enA gine Speeding up excessively under such wirV nunistiinees, which seriously overstresses 'fin engine. The dyniuniu pressure of the nir when the machine lives is utilized to efl'ei-,t the closure l claim zl. The i-oinliiuutiou if :in operating!` hund leven :i rod slidulilii uuiuntml thereiiu u ph` tun ronuec'ted to uuid rod nui! n :Zylinder c-nnnrvted to siiiil hund luier in u'liirli i'yliuder the piston is .slicliible` un :iir pump ein! :i pipe ronueetiug; :mid pump :ind said eylinV der, :i spring to :ict ou the i'yliniler against the pressure Caused hy the pump, and means; to reuse the pressure in the cylinder und thtI pump to equalize.

2. The combina i in f r" im. operating;v inemY ber und n link having un adjustsblee0nnection therewith, n 'piston connected to both the operating member :ind the liuli und means for liiositiouing the piston according to the pressure of the Surrounding ntmospliere, und therein,v the relative positions oi the link il. The ooinhiuution with :in :iir pump und :t cylinder to receive the nir therelroni7 the .pump netmeeting alternately sind pouiliirelj| to the outside :itniosphere :mil to the elylin ler :it @zich (fyi-le olE iti-L operation, u piston in ysaid ("ylinflor, :i spring' to resist the` notion oll nir pressure on the pistou, und :i controlhui,r devire :ittzu'hed to Huid piston.

L The combination ol" :in u'ir puinp und un air cylinderh means to ifontrol the :it-tion ol the nir punip so that the pressure within the cylinder shall ului'uiys have :i lixed relatinu to the pressure of the utinosphere, n luiud leve und means operated by said hand lever through iii-rs whose i'zulii nre deter-- mined hy sain! pressure.

The eoinliiuatimi ni' :i pivoted operating! hund lever and :i ."yliniler ronuwrteil thereto` u lulrruzn for the handle` u rml siliiliilil.i in the lizud lever :ind :i piston mnu melted to the rofl sliiiulilr in the4 gvliihl'ei :i springr in the iiuier Mul (if the v rliiidfir norniuily liolil the piston lowuril iilii` lui #ruin of the handle :i iinh founeirtwl tu. the r il :in nir pump comprising :i vliliiulerf. pistou und diseliiirgr mire. und ii pipe huid ingioni the pump to the lull-ruin oi" the operating hand lever Wliir-h is provided vi i .,li ai passage to the cylinder Connected to the hand lever. seid pump Cylinder having opening-s to zirlniit air at the end of the eue-- tion stroke of the piston und said pistou having u projection to lift the discharge valve off its sent at the end of each compression stroke so that the pressure in the two cylinders will always be equal at euch liftn ingo!" Suid valve,

STANLEY M. LilifiilA titi 

